The Tech Report have seen some mixed results from their SSD endurance testing using Anvil's Storage Utility.  There has not been any mentionable performance degradation for any of the SSDs they have been testing but Kingston's drives have shown some unpredicted behaviour. The HyperX series displayed speed increases, a slight increase in sequential reads and writes as well as random writes and a large increase in random reads.   Tune in next time when they reach 100TB.

"We're testing six SSDs to see how many writes they can take before burning out and what happens to performance as the flash degrades. Today, we check in on our subjects after 22TB of writes."

Here are some more Storage reviews from around the web:

Storage